ZDRES-232: resolveProxyClass Not Overridden - acceptMatchers Filter Bypass via java.lang.reflect.Proxy
Assessment: Fully addressed.
When the serialised stream contains a TC_PROXYCLASSDESC (the marker for a java.lang.reflect.Proxy ), JDK’s ObjectInputStream.readProxyDesc() is dispatched. JDK then calls the default ObjectInputStream.resolveProxyClass(interfaces) implementation, which performs Class.forName(intf, false, latestUserDefinedLoader()) for EACH interface name and constructs the proxy class — bypassing the accepted classes list .
ZDRES-233: Class.forName(name, initialize=true, classLoader) in readClassDescriptor Triggers Static Initialiser of Allow-Listed Classes
Assessment: Fully addressed.
For ANY class on the allow-list, deserialising a stream that names it triggers the class’s (static initialiser) BEFORE any instance is constructed. This means an attacker who supplies a class name on the allow-list (e.g., the developer wrote accept(“com.myapp.*") , attacker supplies com.myapp.SomeClass ) causes <clinit> of SomeClass — and many real-world classes have side-effecting static initialisers
Both issues have been fixed.
{
"cna_assigner": "apache",
"cwe_ids": [
"CWE-502"
],
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.8"
},
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.13"
},
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.29"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47065.json"
}{
"source": "CPE_STRING",
"cpe": [
"cpe:2.3:a:apache:mina:2.0.29:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:mina:2.1.13:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:mina:2.2.8:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "2.0.29"
},
{
"last_affected": "2.0.29"
},
{
"introduced": "2.1.13"
},
{
"last_affected": "2.1.13"
},
{
"introduced": "2.2.8"
},
{
"last_affected": "2.2.8"
}
]
}